* {
  margin: 0;
  padding: 0;
}

ul {
  list-style: none;
}

.box {
  width: 1200px;
  height: 400px;
  //background-color: orange;
  margin: auto;
  position: relative;
  overflow: hidden;

  ul {
    height: 100%;
    width: fit-content;
    position: absolute;
    top: 0;
    left: 0;
    display: flex;

    li {
      width: 1200px;
      a{
        width: 100%;
        height: 100%;
        display: block;
        img{
          width: 100%;
          height: 100%;
        }
      }
    }
  }

  .left,
  .right {
    width: 50px;
    height: 50px;
    //background-color: rgba(0, 0, 0, 0.5);
    color: #fff;
    text-align: center;
    line-height: 40px;
    position: absolute;
  }

  .left {
    border-radius: 0 20px 20px 0;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
  }

  .right {
    border-radius: 20px 0 0 20px;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
  }

  .pointer {
    width: fit-content;
    height: 12px;
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);

    .s1 {
      width: 12px;
      height: 12px;
      margin-right: 4px;
      border: 1px solid rgba(0, 0, 0, 0.05);
      background: rgba(255, 255, 255, 0.4);
      display: inline-block;
      border-radius: 50%;
    }
    .s2 {
      background-color: #ffffff;
      width: 9px;
      height: 9px;
      position: relative;
      top: 2px;
      left: 0;
      border: 3px solid rgba(0, 0, 0, 0.1);
    }
  }

}
